Patent FR1028415A successfully refreshed from Google Patents.
US2935627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Priority demand circuits
Assignee: General Dynamics Corp
•
Filing: 1958-08-20
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Granted: 1960-05-03
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Expires: 1978-08-20
Abstract
No abstract record available.
Inventors
- 👤 Gerhard O K Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:02
CPC Classifications
H; H04; H04M; H04M3/00; H04M3/42; H04M3/50; H04M3/51; H04M3/523; H04Q; H04Q3/00; H04Q3/42; H04Q3/52; H04Q3/521
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1968420A
Cited
US2352107A
Cited
US2656416A
Cited
US2686843A
Cited
US2725427A
Cited
US2754368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-03 | 1963-11-02 | 1964-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-03 | 1967-11-02 | 1968-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-03 | 1971-11-02 | 1972-05-03 | $7700.00 | Window Closed / Lapsed |